Animal Development. Chapter 47. Post-fertilization. After fertilization, embryology occurs Embryology is the development of the zygote Focus on the development of mammalian embryos.
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Acrosomal Reaction – the acrosome on the sperm secretes hydrolytic enzymes to digest the egg’s jelly coat.
Acrosomal process – actin filaments that protrude from acrosome & binds to membrane receptors on the egg
Ectoderm – Skin, teeth, Nervous system
Mesoderm – Skeletal, Muscular, Circulatory, Reproductive Systems (Blood, bones, and muscles)
Endoderm – Epithelial linings of the digestive, respiratory, & excretory tract. Liver & Pancreas as well